Gasp! So what does Murphy do that's so awful? An unnamed source blabbed: "He has bad mood swings and can be really mean." (Perhaps he's just busy working on his other show, American Horror Story.)

Apparently the cast has rallied around Lea Michele — aka high-school diva Rachel — whose attempts to stand up to Murphy aren't going so well: when she complained to him about the long hours and gruelling workload, he reportedly threatened to fire her close pal Amber Riley (who plays Mercedes).

That all sounds pretty awful, but everyone in the show has denied the reports. Naya Rivera, who plays sassy cheerlead Santana, tweeted that "the malicious things being written about Ryan Murphy are so sad and false" and "proud to work for such a talented man!"